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var Promise = function(wrappedFn, wrappedThis) {
this.then = function(wrappedFn, wrappedThis) {
this.next = new Promise(wrappedFn, wrappedThis);
return this.next;
};
this.run = function() {
wrappedFn.promise = this;
wrappedFn.apply(wrappedThis);
};
@yoavniran
yoavniran / ultimate-ut-cheat-sheet.md
Last active July 16, 2025 06:32
The Ultimate Unit Testing Cheat-sheet For Mocha, Chai, Sinon, and Jest
@reggi
reggi / glob-up-and-running.md
Last active November 26, 2024 05:58
A tutorial on how to get started using glob patterns in your terminal. #writing

Glob Up and Running

To test a glob pattern go over to globtester and play around with creating your own file structure online, it's super easy to get started that way.

If you want to test out a glob pattern in the terminal use echo followed by the pattern, for instance.

echo **/*.js
@djonsson
djonsson / install_elasticsearch_osx.md
Last active June 12, 2025 07:13
OS X installation instructions for Elasticsearch + Kibana + Marvel

What is this?

Following this guide will set up a local Elasticsearch with Kibana and Marvel using Homebrew and Homebrew Cask

Prerequisites

If you already have Java installed on your system, skip steps Install Cask and Install Java

If you already have Java and Homebrew installed on your system, skip steps Prerequisites, start at Install Elasticsearch and Kibana after running $ brew update

Install Homebrew

  • $ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
@vasanthk
vasanthk / System Design.md
Last active November 3, 2025 06:47
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
@subfuzion
subfuzion / curl.md
Last active October 11, 2025 00:58
curl POST examples

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

@anvk
anvk / promises_reduce.js
Last active September 8, 2024 15:10
Sequential execution of Promises using reduce()
function asyncFunc(e) {
return new Promise((resolve, reject) => {
setTimeout(() => resolve(e), e * 1000);
});
}
const arr = [1, 2, 3];
let final = [];
function workMyCollection(arr) {
@beaucharman
beaucharman / throttle.js
Last active November 12, 2022 15:39
An ES6 implementation of the throttle function. "Throttling enforces a maximum number of times a function can be called over time. As in 'execute this function at most once every 100 milliseconds.'" - CSS-Tricks (https://css-tricks.com/the-difference-between-throttling-and-debouncing/)
function throttle(callback, wait, immediate = false) {
let timeout = null
let initialCall = true
return function() {
const callNow = immediate && initialCall
const next = () => {
callback.apply(this, arguments)
timeout = null
}
@subfuzion
subfuzion / README.md
Last active April 25, 2025 18:23
vim/neovim configuration

I recently switched over to neovim (see my screenshots at the bottom). Below is my updated config file.

It's currently synchronized with my .vimrc config except for a block of neovim-specific terminal key mappings.

This is still a work in progress (everyone's own config is always a labor of love), but I'm already extremely pleased with how well this is working for me with neovim. While terminal mode isn't enough to make me stop using tmux, it is quite good and I like having it since it simplifies my documentation workflow for yanking terminal output to paste in a markdown buffer.

These days I primarily develop in Go. I'm super thrilled and grateful for fatih/vim-go,

React && Firebase Workshop

Contact Information

Prequisite Setup

  • A recent version of Node.js
  • npm install -g create-react-app